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72
Chapter 3
Installation
3
VSAT systems:
For optimum performance we recommend a
minimum distance of 3 meters from the BGAN antenna to VSAT
antennas.
Other transmitters:
For minimum recommended distance to
transmitters in the frequency range below 1000 MHz. See figure
below.
Figure 3-13: SAILOR FleetBroadband minimum distance to
transmitters
3.4 Installation of the ADU
3.4.1 Antenna grounding
You may ground the antenna using the mounting bolts.
If the antenna cannot or should not be electrically connected directly
to the mounting surface, you can use a separate grounding cable
to make the connection between the antenna and the common
ground to which the terminal is also connected. For example,
you can connect a separate grounding cable if or when vibration
isolators are used at the mounting bolts.
To obtain a good ground connection, the metal underneath the
head of
at least
one bolt must be clean of insulating protective
coating and corrosion and a serrated washer should be used. After
tightening the bolts we recommend that you seal the area suitably
in order to avoid corrosion of the grounding point.
Use stainless steel bolts and washers.
For further grounding information read Appendix
C Grounding and
RF protection
in the Installation Manual.
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